1 /* $OpenBSD: fclose.c,v 1.6 2005/08/08 08:05:36 espie Exp $ */
2 /*-
3 * Copyright (c) 1990, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Chris Torek.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #include <errno.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include "local.h"
38
39 /* BIONIC: remove any file lock associated with a FILE* pointer */
40 extern void __fremovelock(FILE *fp);
41
42 int
fclose(FILE * fp)43 fclose(FILE *fp)
44 {
45 int r;
46
47 if (fp->_flags == 0) { /* not open! */
48 errno = EBADF;
49 return (EOF);
50 }
51 WCIO_FREE(fp);
52 r = fp->_flags & __SWR ? __sflush(fp) : 0;
53 if (fp->_close != NULL && (*fp->_close)(fp->_cookie) < 0)
54 r = EOF;
55 if (fp->_flags & __SMBF)
56 free((char *)fp->_bf._base);
57 if (HASUB(fp))
58 FREEUB(fp);
59 if (HASLB(fp))
60 FREELB(fp);
61 fp->_flags = 0; /* Release this FILE for reuse. */
62 fp->_r = fp->_w = 0; /* Mess up if reaccessed. */
63 __fremovelock(fp);
64 return (r);
65 }
66